Alpen 5.5mm x 450mm o/a SDS-plus Masonry Drill Bit

Low wear properties coupled with very long service life make these an ideal contractors or professionals SDS-plus drill bit.

A high efficiency drill for heavy duty drilling into concrete, reinforced concrete, natural stone and brickwork.

Designed to fit all current 2 or 3 action SDS-plus machines, either mains/site powered or cordless powered.

The overall length of this 5.5mm SDS-plus masonry drill bit is 450mm long and has an effective working length of 400mm.

With SDS-plus drill bits of 450mm o/a length, it is advisable to always pre-drill the hole using a 160mm o/a length bit first. This will then eliminate any excess whip that long drill bits have, thus avoiding drill bit breakage.